An ISO 9001: 2001 acknowledged company, Sai Systems deals with Designing research and development in Electronic Instruments and Hardware Components. Sai Systems offers 4mm Banana plug SP 4 available with 4mm Spring loaded Banana plug, Insulation: Polyamide, Conductor: Brass, Finish: Nickel, Rated Current: 12Amps Max., Contact Resistance: <5mW and Breakdown Volt: 1KV.